Pasteurizing apparatus.



No. 764,657. PATENTBD JULY l2, 1904, W. GLASMANN.

PASTEURIZING APPARATUS.

APPLIGATION FILED APB. 25, 1902.

N0 MODEL.

idnesse: 5%@ @zu a. uw

No. 764,657. PATENTED JULY 12, 1904. W. GLASMANN.

PASTEURIZING APPARATUS.

APPLIGATION FILED PR.25,1902.

NG MODEL. 3 SHEBTS-SHBBT 2. v

PATENTED JULY 12, 1904.

W. CLASMANN.

PASTEURIZING APPARATUS.

APPLICATION FILED APR. 25, 1902.

3 SHEETS-SHEET 3A NO MODEL.

AAAQLGALA AAM/A:

JAAAAAAL 7&6 o 0 76.0 l l` LAGAAUELAAAAMAAQLA Patented July 12, 1904.

UNITED STATES PATENT OEEIcE.

`WILLIAM OLASMANN, OF MILVAUKEE, VVISOONSIN, ASSIGNOR TO PABST BREWINGCOMPANY, OF MILVAUKEE, VVISOONSIN, A CORPORATION OF VTISOONSIN.

PAsTEumzlNeAPPARATUs.

SPECIFICATION forming part of Letters Patent No. 764,657, dated July 12,1904.

Application filed April 25, 1902.`

To r//H wit/7n t may concern:

Be it known that I, 'VTLLIAu CLASMANN, a citizen of the United States,residing at Milwaukee, in the county of Milwaukee and State ofVisconsin, have invented certain new and useful Improvements inPasteurizing Apparatus, of which the following is a specification,reference being had to the accompanying drawings, forming a partthereof.

This invention relates particularly to apparatus for pasteurizing orsterilizing bottled beer and other products, beverages, food, orperishablesubstances contained in sealed or closed receptacles-such asbottles, cans, jars, and thelike.

rlhe main objects of the invention are to graduallyY heat the beer orother material to be treated to a pasteurizing temperature, to hold itat that temperature for a certain time and then graduallyT cool it, tosave heat, to avoid waste of water, to economize space, and generally toimprove the construction and operation of apparatus of the class towhich the invention relates.

It consists in certain novel features in construction and in thearrangement and combinations of parts hereinafter particularlydescribed, and pointed out in the claims.

ln the accompanying drawings likeV letters designate the same parts inthe several figures.

Figure 1 is a vertical section of one form of apparatus embodying theinvention.

as viewed from the right with reference to;

Fig. 2 is an elevation and partial section on the line Fig. 1; and Figs.3, 4, and 5 are sectional.`

views corresponding with Fig. 1 of modified forms of the apparatus.

Referring to Figs. 1 and 2, a is a tank or receptacle adapted toholdwater or other liquid for conveying and distributing heat to andfrom the bottled beer or other material to be treated in the apparatusashereinafter eX- plained. This tank or receptacle has twovertically-disposed compartments Z) and c, which communicate with eachother at their lower ends. The compartment 7), which may be called thewarming and cooling compartment, extends above the compartment-c andserial No. 104,611. 11@ modem is provided with one or more openings dfor placing the material to be treated in and `removing it from theapparatus. The compartment c, which may be called the heating 'orsterilizing compartment, is closed-iat the top. An endless conveyer,consisting of trays or holders e, suspended at the ends from chains orlink belts f, which are carried and guided by suitably-arrangedsprocket-wheels g, is adapted to carry the material to be treateddownward through the compartment L, thence upward and downward throughthe compartment c, thence back and upward through the compartmentopposite parts of the conveyer traveling simultaneously in oppositedirections through each of said compartments. The heating-compartment,cis provided with perfo/ratecLsteam-pipes it for heating the liq-l uidtherein and with rtary agitators t' for producing or acceleratingcirculation of said liquid and more evenly distributing the heatconveyed thereby to the material carried by oppositely moving parts ofthe conveyer. As shown in Fig. 1, the compartment may be provided with avertical partition 7' between the descending and ascending parts of theconveyer.- At the top of this partition, which terminates at or near thedesired liquid-level, a paddle-wheel f: or other suitable device isprovided to transfer water from one side of said partition to the otherand produce a current, as indicated by dotted arrows, in a directionopposed to the travel of the conveyer. The heating-compartment c isprovided at the top with a valve-controlled vent `and air-supplyconnefon Z, by means of which air cntrapped in the uppipart of saidcompartment may be released, so that the compartment will lill withwater or other liquid or by means of which apirmrnay be forced into saidcompartment to displace more or less of the water or other liquid in theupper part thereof. In this way by varying the depth of the water orother liquid in the heatingcompartment c th'e material to be treated4therein may be subjected to a pastcurizing tem.- perature a longerv orshorter time for any given speed of the convcyer, while the time forwarming and cooling the material in the ing and cooling compartments.

compartment remains the same. The conveyer may be driven by powerapplied to the shaft/1n of the sprocket-wheels in the upper end of thecompartment?) or to any other convenient part oi' the machine, and theagitators /z may be driven by means of pulleys fn, on theagitator-shafts which project through the stuffing-boxes in the tank a,as shown in Fig. 2.

Referring to Fig. 3, showing a modification of the apparatus, the tank ahas an extra o r third compartment 0 between the compartments I) and c.This compartment o communicates at its upper end with the upper end ofthe heating-compartment c and. at its lower end with the lower end oi'the compartment I, constituting, in effect, an extension oi' the warm Inthis form of the apparatus the partition in compartment b is omitted andagitatorszl are provided f arranged so as to occupy little availablelioorto' produce or accelerate circulation ot' the liquid and distributethel heat. The compartment 0 is or may be also provided with agitators.In other respects the apparatus is like that shown in Figs. l and 2.

Referring to Fig. 4, ther warming and cool'- ing and the heating orpasteurizing compartments 5' and c are entirely separate from each otherand are open at the top, the conveyer passing over suitably-locatedsprocket-wheels from the top of one te the top of the other. Thecompartment or tank Z) is in this case made larger horizontally toaccommodate the two extra runs of the conveyer, but is not as In other ation of a heating-receptacle adapted to contain high as it is shown inFigs. l and'. 3v. respects the apparatus is essentially like that shownin the preceding figures.

Referring to Fig. 5, the warming and cooling and the heatingcompartments and c are, as in Fig. 4, entirely separate from each otherand are open at the top, but in this case they are arranged horizontallyinstead of vertically, and the sprocket-wheels by which the conveyerchains or belts are guided are arranged to carry the trays or holders ehori- Zontally in opposite directions through the liquid in each of saidcompartments.-

In the operation or' each oi the several forms of apparatus herein shownand described it will be apparent that the heat given oi by the outgoingmaterial is taken up by the liquid and transferred tothe cool incomingmaterial, the temperature oi' Which is thereby gradually raised by heatwhich would otherwise be lost. The cool incoming material absorbing heatfrom the liquid through which the outgoing material passes coo-ls theoutgoing material to they desired temperature. The material beingcarried by the conveyer through the heating compartment or tank inopposite directions tends to distribute the heat and to maintain anapproximately uniform temperature therein, the temperature beinggoverned and regulated by the admission of more or less steam into saidcompartment through .the pipes h. The

proper distribution and application of theheat to gradually raise theincoming material to a pasteurizing temperature, to maintain it for acertain period at that temperature and then gradually cool it, is mostadvantageously ei'- i'ected without loss either oi' heat or of water orother liquid by the counter-currents produced by oppositely-mevingportions of the conveyer in the several compartments oi' the apparatus,aid ed if necessary or desired by the agitators 1', the paddle-wheel lr,as shown in Fig. 1,or other means.

The gradual change effected by my improver apparatus in the temperatureof the material as it is heated to and cooled from a pasteurizlngtemperature avoids to a great extent the breaking of bottles or otherfragile receptl cles and consequent loss resulting from too abruptchange of temperature.

It will be observed that the apparatus may be space. For instance, withthe forms shown in Figs. 1, 2, and 3 only the upper end of thecompartment l) need extend above the working floor, and with the formsshown in Figs. 4 and 5 only that portion of the conveyer passing overthe upper sprocket-wheels from and into the warming and coolingcompartment or tank s I) need extend above the Working floor.

Various changes in details oi' construction and arrangement of parts maybe made within the spirit and intended scopeI oi' the invention.

I claiml. In pasteurizing apparatus the combinaa liquid, means forheating the liquid contained in said receptacle, a warming and coolingreceptacle also adapted to containa liquid, and an endless conveyerarranged to travel through the liquid contained in said warming andcooling receptacle, thence through said heatingreceptacle and thenceback through the liquid in said warming and cooling receptacle in anopposite direction, whereby heat is transferred by the liquid from theoutgoing to the ingoing material carried by said conveyer, the ingoingmaterial is gradually heated and the outgoing material is graduallycooled, substantially as described.

2. In pasteurizing apparatus the combination of a heatingreceptacle, areceiving and delivering receptacle divided into warming and coolingcompartments, an endless conveyer arranged to travel through saidwarming-compartment, thence through said heating-receptacle and thencethrough said cooling-comn partment, and means for heating the liquidinsaid heating-receptacle, substantially as described.

3. In pasteurizing apparatus the combination of a heating-receptacle,areceiving and delivering receptacle divided into warming and coolingcompartments, an endless conveyer arranged to travel through saidwarming-com lOO IIO

partment, thence through said heating-receptacle and thence throug'hsaid cooling-cornpartment, means for heating the liquid in saidheating-receptacle, and means for producing' a circulation of the liquidthrough the warming and cooling compartments in a directionV opposite tothe travel of the conveyer, substantially as described.

4. In pastcurizing apparatus the combination otl a vertically-disposedclosed heatingtank adapted to contain a liquid, a verticallydisposcdwarming and cooling receptacle provided above said heating-tank withafeed and discharge opening and communicating` below said opening' withsaid heating-tank, and an endless conveyer arranged to travel inopposite directions through said Warming and cooling receptacle andthrough said heating-tank, and means for heating the liquid in theheating-tank, substantially as described.

5. In pasteurizing apparatus the combination of a receptacle, having awarming and cooling compartment adapted to contain a liquid and apasteurizing-compartment communicating with the warming and coolingcompartment and also adapted to contain a liquid, means for heating theliquid in said` pasteurizing-compartment, and an endless conveyerarranged to travel through the liquid contained in said warming andcooling cornpartment, thence through said pasteurizingcompartment andthence back through the liquid in said warming and cooling compartlmentin an opposite direction, substantially as WILLIAM CLASMANN. vWitnesses:

CHAS. L. Gross, ALICE E. Goss.

